Engine; Spark Plugs - Yamaha RX10H Service Manual

SPARK PLUGS

ENGINE

SPARK PLUGS
1. Remove:
S Spark plug caps
S Spark plugs
2. Inspect:
S Electrodes 1
Damage/wear ! Replace the spark plug.
S Insulator color 2
3. Measure:
S Spark plug gap a
Out of specification ! Regap.
Use a wire thickness gauge.
Spark plug gap:
0.7 X 0.8 mm
(0.028 X 0.031 in)
If necessary, clean the spark plugs with a spark
plug cleaner.
Standard spark plug:
CR9E (NGK)
Before installing a spark plug, clean the gasket
surface and spark plug surface.
4. Install:
S Spark plugs
Spark plug:
13 Nm (1.3 mSkg, 9.4 ftSlb)
NOTE:
Finger-tighten a the spark plug before torquing
b it to specification.
2-3
INSP
ADJ